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December Weather in Bunker Hill, United States

Last updated: June 24, 2025

In December, the average temperature in Bunker Hill, United States hovers around 8°C (47°F), with lows dipping to 1°C (33°F) and highs reaching up to 16°C (61°F). Expect around 204 mm (8.0 in) of precipitation spread over approximately 17 days, contributing to a rather humid atmosphere with an average humidity of 87%.

December Temperature in Bunker Hill

In December in Bunker Hill, the average temperature is 8°C (47°F). Maximum temperatures can reach 16°C (61°F), while minimums can drop as low as 1°C (33°F). Travelers should be prepared for cool weather and pack layers to enjoy their stay comfortably.

December Weather in Bunker Hill: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Bunker Hill, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bunker Hill, December typically has an average temperature of 8°C (47°F), with highs reaching up to 16°C (61°F) and lows dropping to around 1°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec474547505458606160555047
Data source: Temperature data for Bunker Hill generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Bunker Hill

In Bunker Hill in December, the precipitation amount is 204 mm (8.0 in) occurring over 17 days.

December Precipitation Trends in Bunker Hill

The chart displays monthly precipitation patterns in Bunker Hill, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Bunker Hill, December typically receives around 204 mm (8.0 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec1922201491185937364870150204
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Bunker Hill

In Bunker Hill in December, humidity is 87%. With an average temperature of 8°C (47°F), this humidity feels like a damp chill that clings to your skin, making outdoor exploration uncomfortably muggy despite the cool air.

December Average Humidity in Bunker Hill

This chart illustrates the average monthly humidity levels in Bunker Hill, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Bunker Hill is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%85%86%83%83%83%78%67%66%77%87%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Bunker Hill

In Bunker Hill in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Bunker Hill, you can visit Hourly UV Index in Bunker Hill.

Maximum UV Index Levels in Bunker Hill for December

The chart shows the monthly maximum UV Index (UVI) for Bunker Hill in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Bunker Hill typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec246710101098532
Data source: Bunker Hill December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How December Weather in Bunker Hill Compares to Other Months

Weather in Bunker Hill varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Bunker Hill, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Bunker Hill, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (47°F)192 mm (7.6 inches)84%low
February Weather7°C (46°F)220 mm (8.7 inches)85%moderate
March Weather8°C (47°F)149 mm (5.9 inches)86%high
April Weather10°C (50°F)118 mm (4.6 inches)83%high
May Weather12°C (54°F)59 mm (2.3 inches)83%very high
June Weather14°C (58°F)37 mm (1.4 inches)83%very high
July Weather16°C (60°F)3 mm (0.1 inches)78%very high
August Weather16°C (61°F)6 mm (0.2 inches)67%very high
September Weather15°C (60°F)48 mm (1.9 inches)66%very high
October Weather13°C (55°F)70 mm (2.7 inches)77%moderate
November Weather10°C (51°F)150 mm (5.9 inches)87%moderate
December Weather8°C (47°F)204 mm (8.0 inches)87%low

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